Nozzle for suction cleaners



Aug. 10, 1937. G, N, E WARDS 2,089,600

NOZZLE FOR SUCTION CLEANERS Filed July 17. 1935 will INVENTOR.

650m: A/. foWA/PDS Y zwmmww ATTORNEYi Patented Aug. 10, '1937 PATENT OFFICE NOZZLE FOR SUCTION CLEANERS George N. Edwards, Willoughby, Ohio, assignor to The Ohio Rubber Company, Willoughby, Ohio,

a corporation of Ohio Application July 17, 1935, Serial No. 31,875

3 Clams.

This invention relates to nozzles for vacuum cleanersand has particular reference to a nozzle, including a relatively rigid body member provided with a row of bristles surrounding a suction opening extending therethrough and provided in line with the opening and inside the row of bristles with a softyieldable extension or cup. Generally also the body member has its-outer portion covered with rubber or other soft material to reduce the liability of marring furniture and the like.

I-Ieretofore, the bristle holder, the flexible cup therein, and the soft protector for the margin of the bristle holder have been separately formed and the parts attached together. Additionally, there is required a connector or adapter which is a separate piece secured to the bristle holder and is adapted to receive the end of a tubular member connected to the suction cleaner.

It is the purpose of the present invention to provide a suction nozzle, particularly of the type referred to, which can be produced less expensively and which is generally more satisfactory than the multi-part nozzles used heretofore.

More particularly it is the aim of the invention to form the rigid-and the yieldable parts'as a unit, thereby avoiding the expense incident to the assembly and attaching of separately formed parts and the disadvantage of accidental separation of the parts in use or,otherwise.

In carrying out my invention, I'form-the rigid body member or bristle holder, the soft cup on the interior of the bristles, and the outer soft covering in one unitary member, as by forming them of hard and soft rubber compositions vulcanized into a single unitary body, each part,

however, retaining its relatively hard or relatively soft characteristics, as the case may be. I may also form the adapter or connector, which heretofore has been attached to the body member 40 and makes connection with the suction tube or pipe, integrally with the body member or bristle holder.

The invention may be further briefly summarized as consisting in certain novel details 46 of construction and combinations and arrangements of parts which will be described in the specification and set forth in the appended claims.

In the accompanying sheet of drawings,

Fig. 1 is a view in perspective showing conventionally a vacuum cleaner to which the invention may be applied;

Fig. 2 is a cross-sectional view of one form of nozzle made in accordance with my invention;

Fig. 3 is a plan view of the same; 7

Fig. 4 is a view similar to Fig. 2 showing a. modification;

Fig. 5 is a plan view of Fig. 4 with the adapter removed; and

Figs. 6 and '7 are cross-sectional views of fur- 5 ther modified forms of the nozzle.

Referring now to the drawing, l0 represents a vacuum or suction cleaner as a whole which may be of any suitable construction. At II I have shown the nozzle to which is attached the flexible hose I2 leading to the cleaner. The nozzle may have any suitable shape or contour, but in Figs. 2 and 3 it is shown round and in Figs. 4 and 5 it is shown elongated.

In Figs. 2 and 3 the nozzle is provided with a body portion i3 having an annular row of flexible bristles I4 which are generally arranged in groups or bundles set into openings of the body [3 and fastened by staples or otherwise. The body member 13 has a central suction opening and in line with this opening there is a soft flexible cup l5 which extends from the body or bristle holder l3 centrally into the space inside the row of bristles and terminates a distance above the free ends of the bristles. Also surrounding the body member or' bristle holder is an outer covering ii of soft yieldable material the purpose of which is to form a cushion to lessen the likelihood of furniture being marred by the manipulation of the nozzle.

To the body member or bristle holder I3 there is usually secured by screws or otherwise an adapter or connector l1 which has a tubular extension adapted to be fitted telescopingly into or over one end of the suction hose l2 or a tube or pipe which is connected thereto. The inner cup [5 in effect forms an extension of the suction line through the body member l3, adapter l1, and the connecting hose to the suction chamber of the vacuum cleaner.

It is a feature of the present invention that the rigid bristle holder or body member l3, the soft inner cup l5, and the soft outer covering l6 are formed as a unit. These parts are preferably formed from hard and soft rubber compositions which are molded and vulcanized together so as to provide a unitary element consisting of the hard or rigid bristle holding body member, the soft flexible cup or extension l5, and the" outer soft covering I6. While these parts are preferably formed of rubber, they may be formed of other materials of an equivalent nature which, in the curing operation, are caused to become one unitary piece or structure and which will retain the desired hard and soft characteristics.

' As previously pointed out, the body member or bristle holder of the nozzle may have any suit- 5 able shape or contour, such as round, as shown in Figs. 2 and 3, or elongated, as illustrated in Figs. 4 and 5, wherein the body member is designated I 8. a When an elongated body member is employed, the lower contacting end of the adapter, designated l9 in Figs. 4 -and 5, will be correspondingly shaped, as will also the inner soft flexible cup here designated 20, and of course the outer soft covering l6 and the row of bristles II will have an elongated contour corresponding to the shape of the nozzle body mem- The soft flexible cup inside the row of ber. bristles may otherwise be variously shaped. For example, in Figs. 2 and6 the cup I! is shown flared outwardly from its upper to its lower end, while in Fig. 4 it is shown extending straight downward irom the body member of the nozzle.

In Fig. 7, the cup, here designated 2|, is or bulbous form, being bulged outwardly below the body member and at itslower end beingcurved inwardly .and in this instance upwardly at its free end 2Ia to form a restricted passage 2") at its lower end. It may be otherwise shapedfas may be found desirable. j

I flnd that the unit. idea embodied in the con-- struction of the nozzle may be extended to include the adapter-which heretofore has been a separate member attached to the body or bristle holder of the nozzle, and this'is illustrated in Figs. 6 and 7 wherein the body member and the adaptenhere designated 22, arei'ormed in one piece preferably of hard rubber or equiva: lent material. 1. Itwill be understood that. with all forms of the invention, regardless of the shape or contour of the bristle. holder and of thesoit inner flexible cup 15, 20, or 2|, and regardless of whether the body member and the adapter are formed separately and attached together, as in Figs. 2 and 4, or are formed, integrally, as illustrated inFigs; 6 and 7, the, unit idea or'unitary construction feature of the hard body'member, the soft" inner cup-"or extension," and the soft covering is preserved sum the advantages or objects of the invention stated at the beginning of the specification are attained.

While specific shapes have been shown and described and specific materials mentioned, I do not desire to be confined to these details but aim in my claims to cover all modifications which do not involve a departure from the spirit and scope of my invention.

- Having thus described myinventiomzlclaimz 1. A nozzle for suction cleaners comprising a rigid tubular body member having a suction "opening extending therethrough and provided at its end with a laterally extending marginal flange, bristles'niounted on said flange and disposed around the suction. opening, and a soft .yieldable cup-like member located inside the bristles and forming an extension of the suction opening; said cup-like member being formed integral with said flange and being provided with an opening which merges smoothly with the suction opening of said body member. 7

2. A nozzle for suction cleaners comprising a rigid tubular, body member having a suctionopening extending therethrough and provided at its end with a laterallyextendin'g marginal flange, bristles mounted on said flange and disposed around the suction opening, and a soft 'yieldable' cup-like member locatedinside the bristles and forming an extensional the'suction opening, said cup-like member being flared and having the 'smalI-end-thereot connected with said flange and provided with an opening whichmerges smoothly with the suction opening ofsaid'body member. 3. A nozzle for suction cleaners comprising 'a' rigid tubular body member having a" suction opening extending therethrough and provided at its end with a laterally extending marginal flange,

bristles mounted on said flange and disposed" around the suction opening, a; soft yleldable cup-' like member located inside the bristles and forming an extension of the suction opening, "said cup-like member being formed integral with said flange and being providedwith-an opening which merges smoothly with the suction 'opening'of said body member,and 'a'soft yieldable covering formed integral with said flange and extending around the outer edge thereof.

GEORGE mnnwannsf 

